本剧引入了“客串主角”的概念，即每季一个女主以外的新主角。第一季的Callum Turner不会回归。
　　新季将再次质疑眼见是否一定为实。英国正遭受围攻：被黑客攻击的新闻动态推送、被操纵的媒体，以及政治中出现的干涉。在英国「校正」部门站稳脚跟的Rachel Carey高级督察，发现自己正处于一场新的阴谋之中，面临着一个新的目标。可是，当她甚至不能信任自己最亲近的同事时，又要如何解决这起案件呢？
　　相较第一季的监控问题，情况更加恶化。故事将讲述“隐形”杀手、深度伪造科技的可怕崛起、政府与大型科技公司之间日益紧张的关系，和英国媒体内部核心的腐败。
　　Holliday Grainger回归饰演女主角Rachel Carey高级督察。Paapa Essiedu（《我可以毁掉你》）饰演新客串男主Isaac Turner议员，一位年轻的后起之秀政客，有志于最高层职位。

　　第5个故事由4集组成，Tom Edge编剧，Sue Tully执导。BBC负责英国播出，HBO负责北美，华纳兄弟负责全球发行。

一个著名的魔术师做了终极消失小坎。Cc行动后消失得无影无踪。整个伦敦都在谈论这个谜团，伊莱莎被一家报纸雇佣去调查，尽管杜克已经在调查这个案子了。

　　浪漫、竞争以及一个极端的秘密。在一次前往遥远岛屿的露营中，黑暗的秘密将一生难求的冒险变为了扭曲的噩梦。

　　关于开膛手杰克的故事在世界上广为流传，直到120多年后的今天，这位恶名昭彰的连环杀人犯依旧有着令人闻风丧胆的影响力，但谁都不知道真相。但这股暗黑和悬疑之风却让它多次被人挖掘和重演。
　　1888年，位于伦敦东区的白教堂一带发生连续杀害至少多名妓女的凶杀案，让维多利亚时期的伦敦陷入恐惧的疑云之中。凶手代号——开膛手杰克，犯案期间多次写信至警察局挑衅，却始终未落入法网。其大胆的犯案手法，又经媒体一再渲染而引起英国社会的恐慌。伦敦警局的H分部到任务，负责平息开膛手杰克犯案后的恐慌气氛，并且要将这个难以捉摸的罪魁祸首缉拿归案。负责这起案件的侦探埃蒙德·里德（马修·麦克费登 Matthew Macfadyen 饰）和班纳特·德雷克（杰罗姆·弗林 Jerome Flynn 饰）将并肩作战，寻找出开膛手杰克......

　　《开膛街》第二季讲述了开膛手杰克之后，白教堂警官们如何在白教堂维护社会安定，缉拿穷凶极恶的凶手。伦敦的这个区，因为开膛手而永远改变了，每次发生犯罪，人们就会想到是开膛手回来了。如何才能让民众感到安全。被谑称为“来自地狱的警官”们，要绞尽脑汁了。

　　Morse is taken seriously ill at a museum reception and is hospitalized. In the hospital, Supt. Strange, visits Morse to push him to take early retirement, while Dr. Millicent 'Millie' Van Buren gives him her book on a 140 year-old court case known as the Oxford Canal Murders. The case involved the murder and rape of a young woman, Mrs Joanna Franks, traveling by canal boat from Coventry to London. The case resulted in three boatmen being sentenced to death and two of them hanged. Morse starts to read Millie's book and dreams about it. He soon has a number of problems with the case.
　　Why weren't the three men also charged with theft? Why did Mrs Franks take a boat instead of a train that was much faster and comfortable and only slightly more expensive? Why didn't she abandon the boat after she complained about lewd behavior of the crew at the shipping office in Banbury? Why did she then drink and 'socialise' with the crew? What happened to her 'carpet bag' with which she arrived on the boat but which was not mentioned in the court case, nor was it stored in the archives with her, almost empty, trunk? The trunk was marked with initials of her first husband who had died. How did it happen that her shoes were found on the boat but nobody saw her return to the boat from the forest?
　　PC Adrian Kershaw does some brilliant leg work for Morse. He studied history and has invaluable background knowledge. For instance, he mentions that the boatmen had bad reputation because they worked on Sundays and did not attend church. Later a chapel was built for them in Oxford.
　　The dead woman's clothes and the shoes found on the boat are submitted to modern forensic investigation. The result is that the shoes did not belong to the dead woman found in the water because she was much taller.The shoes were never used in the forest.
　　Only Mrs Franks' husband, Charles Franks, was called to identify the body of the dead woman. He claimed that, while her face was darkened and disfigured, he found a birth mark behind her ear. The prosecutor welcomed that information "that only a husband or a lover would know". The accused were not shown the body. The defense attorney merely claimed that the guilt of the three men was not proved. All three accused claimed to the end that they were innocent. One of them was not executed because he embraced Christianity in prison.
　　Morse instructs Kershaw to investigate if Charles Franks benefited from his wife's death and, indeed, he pocketed 300 pounds insurance money. Case closed: Charles Franks murdered a tall women and dropped her in the canal after meeting Joanna in the forest. If Joanna Franks jumped off the boat at the same time as the dead body hit the water, she swam to the bank and joined her husband. The couple changed their names, in the case of 'Charles Franks' a second time after he 'died' as Joanna's first husband. The fourth boatman, a youngster who was not charged, was probably paid by Joanna to give false testimony.
　　Morse travels to Ireland and has a grave of Joanna's first husband exhumed. The coffin contains bags of sand and some stones.

　　A year after her murder, the police re-open the case of Yvonne Harrison when they receive an anonymous letter implicating a burglar, Harry Repp, who is about to be released from prison. Supt. Strange assigns the case to DS Lewis, who is chafing at the bit awaiting his promotion to Inspector. Morse has been ill and has only just returned to work. He steps on Lewis' toes by involving himself in the case, but as the body count rises, Morse finds himself in charge of investigating a woman who had many affairs with many different men. When he learns that the dead men were in possession of large amount of cash, he suspects they were blackmailing her murderer.

　　该剧根据弗兰克·塔利斯的小说改编，由《神探夏洛克》的编剧史蒂芬·汤普森负责撰写剧本，故事设定在20世纪的维也纳，讲述师从弗洛伊德的年轻医生Max协助奥地利警探Oskar破案的故事。Max对于人类行为的深入理解，让他为一些神秘莫测的案件提供了不一样的侦破角度。

　　《摩斯探长前传》第五季共6集，剧情以1968年为背景，于2018年2月在英国独立电视台播出。

　　ITV续订《探长薇拉》第十二季。

　　特警小组长官Danny Waldron在一次行动中击毙了一名犯罪嫌疑人，他和队员一致声称此举是出于自卫，但反腐小组AC-12的主管却认为这是一起蓄意杀人事件。随着调查深入，更多意想不到的真相浮出水面……

　　Jack Mooney is starting to settle in the sun-soaked island of Saint-Marie, and he has some impossible mysteries to solve. A champion poker player, apparently poisoned at the table in front of an astonished audience. A novelist, murdered in a plot more surprising than anything he’s ever written. And a spiritual leader, strangled at a time when all the suspects were each other’s alibis. Jack’s laconic style belies a sharp mind and relentless determination. He’s a brilliant detective, and he’ll need all his instinctive genius to solve these perplexing murders.

　　New Year's Eve celebrations are cut short when a masked man stabs a woman in her own home. Jack and the team must uncover the identity of the murderer before they can strike again.

　　《大侦探波洛》第四季共3集，均改编自长篇小说，每集片长100分钟左右，于1992年播出。
　　1、The ABC Murders ABC谋杀案
　　2、Death in the Clouds 云中命案
　　3、One, Two, Buckle My Shoe 牙医之死

　　本剧原名《巴金命案 The Barking Murders 》，因视角专注于案件中逝去的生命而改名。
　　故事讲述真实发生过的埃塞克斯郡巴金区命案，以受害者家属的角度描述Stephen Port的一连串犯罪行为，和备受批评的警方调查过程。
　　强奸犯兼连环杀手Stephen Port在同志交友网站找寻目标，然后对他们下药及强暴，其中有四人因Stephen Port用药过量而死；然而当时头三宗命案明明有着相似性，但警方没有以「连环杀人」的方向调查，故此受害者家属认为警方也得对凶案一再发生而负责。

　　聚焦一个美国的死囚犯、一个安静的英国小镇上的牧师，以及一位被困在地窖中的数学老师，他们以最出乎意料的方式越过小径。图齐将饰演剧名所指代的中心人物，莫法特对该剧剧情高度保密，甚至故事的最终走向只有其本人知道。